2007 yamaha 230SX, (2) 180 HP Motors Bimini Top Stereo 2007 YAMAHA 230SX OPEN BOW Check out this Yamaha Open Bow powered by Twin 180HP Yamaha Jet Motors. It comes loaded with a Bimini Top, Porta Potty, Snap In Carpet, Table, Lots of Storage, Bow & Cockpit Covers. Rides on a Tandem Axle Trailer!